WSH202

WSH202
Linear Hall Effect Sensor IC
Features:
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Wide operating range 3.0~12V, -40℃~85℃
z
z
z
Flat Response to 23k Hz
Low operating current 3mA
High Sensitivity
Sensitivity: 10mV/Guass (Differential output) on 3V
Sensitivity: 20mV/Guass (Differential output) on 5V
Two package styles TO-94/SOT-25 available.
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Functional Description :
The W202 integrates Hall sensing element, linear amplifer, sensitivity
controller and emitter follower output stage.It accurately tracks extremely
small change in magnetic flux density –generally too small to operate Hall
effect switch.
W202 can be applied as current sensor, tooth sensor, proximity detectors
and motion detectors. As sensitive monitor of magnetic flux, it can effectively
measure a system’s performance with negligible system loading while
providing isolation from contaminated and electrically noisy environments.
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2012/12/4
WSH202
Electrical Characteristics:
Characteristic
Supply Voltage
Symbol
Vcc
Test Conditions
─
Supply Current
Isupply
B=0 Guass
Quiescent Vout
Sensitivity (Single
Ended)
Sensitivity
(Differential)
Bandwidth
Measurable Range
Temperature Drift
(T=+25˚C, Vdd=5.0V )
Typ
─
Max
12
Units
V
─
3.25
5.0
mA
Vout1/2 B=0 Guass
△Vout1/2 B= 0 to ± 50 G
2.25
8.0
2.5
10.0
2.75
12.0
V
mV/G
△Vout12
16.0
20.0
24.0
mV/G
－
23
－
kHz
－
±100
－
Guass
－
±1.5
－
mV/℃
B= 0 to ± 50 G
BW
MR
Vdd=5V
△Vout0 B=0 Gauss
Min
3.0
All output-voltage measurements are made with a voltmeter having an input impedance of at least 100kΩ
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2012/12/4
WSH202
Electrical Diagram:
WSH202 Sensitivity vs. Supply voltage
18.0
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
3
4
5
6
7
8
9
10
11
12 V
Sensitivity standardization (30℃) vs. Temperature
1.1
1
0.9
0.8
0.7
0.6
0.5
-40
-30
-20
-10
0℃
10
20
30
40
50
60
70
80
90 ℃
WSH202 Isupply(mA) vs. Supply Voltage
6.0
5.0
4.0
3.0
2.0
1.0
0.0
3
4
5
6
7
8
9
10
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2012/12/4
11
12 V
WSH202
Package Information:
TO94:
SOT-25:
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2012/12/4
WSH202
Characteristic Diagram:
WSH202 Sensitivity vs. Supply voltage
18.00
16.00
14.00
12.00
10.00
8.00
6.00
4.00
2.00
0.00
3
4
5
6
7
8
9
10
11
12 V
WSH202 Isupply(mA) vs. Supply Voltage
6.00
5.00
4.00
3.00
2.00
1.00
0.00
3
4
5
6
7
8
9
10
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2012/12/4
11
12 V